U+17A3 "ឣ" Khmer Independent Vowel Qaq Unicode Character

U+17A3 "ឣ" Khmer Independent Vowel Qaq is a character used in the Khmer script to represent an independent vowel sound, specifically the inherent vowel /ʔɑ/ that occurs at the beginning of a syllable without a preceding consonant. Unlike dependent vowel signs which attach to a consonant, this standalone letter stands alone and is considered obsolete in modern Khmer, having been replaced by a different character in contemporary usage while remaining part of the Unicode standard for historical and scholarly purposes.